Article View: comp.lang.postscript
Article #3893Re: Halftone screens (was Re: lousy images)
From: Allen B
Date: Wed, 30 Sep 1992 14:45
Date: Wed, 30 Sep 1992 14:45
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In the book Real_World_PostScript ("The Orange Book"
ISBN 0-201-06663-7), there's a neat program that shows
characteristics of the halftoning. It'll show you how
many gray levels you get etc. There's other good stuff in
there on the subject (and others) that you might want to
check out.
I ran a similar program on our Lino in "low" (1270 dpi)
resolution and it said the default screen was 150 lpi, 45
degrees, 72 pixels (so 73 gray shades). A fountain
printed in that manner was quite convincing.
ab
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Path: arc1-ca.pugleaf.net!sparky!uunet!wupost!darwin.sura.net!spool.mu.edu!agate!ames!purdue!mentor.cc.purdue.edu!news From: ab@nova.cc.purdue.edu (Allen B) Newsgroups: comp.lang.postscript Subject: Re: Halftone screens (was Re: lousy images) Message-ID: <BvEBo6.F2p@mentor.cc.purdue.edu> Date: 30 Sep 92 14:45:41 GMT References: <13632@pogo.wv.tek.com> Sender: news@mentor.cc.purdue.edu (USENET News) Organization: Purdue University Lines: 13